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NHESS | Articles | Volume 18, issue 12
Nat. Hazards Earth Syst. Sci., 18, 3235-3251, 2018
https://doi.org/10.5194/nhess-18-3235-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Nat. Hazards Earth Syst. Sci., 18, 3235-3251, 2018
https://doi.org/10.5194/nhess-18-3235-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 10 Dec 2018

Research article | 10 Dec 2018

Automated snow avalanche release area delineation – validation of existing algorithms and proposition of a new object-based approach for large-scale hazard indication mapping

Yves Bühler et al.
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Allouche, O., Tsoar, A., and Kadmon, R.: Assessing the accuracy of species distribution models: Prevalence, kappa and the true skill statistic (TSS), J. Appl. Ecol., 43, 1223–1232, https://doi.org/10.1111/j.1365-2664.2006.01214.x, 2006. 
Andres, A. J. and Chueca Cia, J.: Mapping of avalanche start zones susceptibility: Arazas basin, Ordesa and Monte Perdido National Park (Spanish Pyrenees), J. Maps, 8, 14–21, https://doi.org/10.1080/17445647.2012.668414, 2012. 
ASPRS: Digital elevation model technologies and applications : the DEM users manual, 1 ed., edited by: Maune, D., American Society for Photogrammetry and Remote Sensing, 2001. 
Barbolini, M., Pagliardi, M., Ferro, F., and Corradeghini, P.: Avalanche hazard mapping over large undocumented areas, Nat. Hazards, 56, 451–464, https://doi.org/10.1007/s11069-009-9434-8, 2011. 
Bartelt, P. and Buser, O.: The relation between dilatancy, effective stress and dispersive pressure in granular avalanches, Acta Geotech., 11, 549–557, https://doi.org/10.1007/s11440-016-0463-7, 2016. 
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Short summary
Coping with avalanche hazard has a long tradition in alpine countries. Hazard mapping has proven to be one of the most effective methods. In this paper we develop a new approach to automatically delineate avalanche release areas and connect them to state-of-the-art numerical avalanche simulations. This enables computer-based hazard indication mapping over large areas such as entire countries. This is of particular interest where hazard maps do not yet exist, such as in developing countries.
Coping with avalanche hazard has a long tradition in alpine countries. Hazard mapping has proven...
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